package csc.traning.wpsj.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import csc.traning.wpsj.dao.Counter;
import csc.traning.wpsj.dao.User;


/**
 * Servlet implementation class LogoutServlet
 *  * @author hdang20
 */
public class LogoutServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public LogoutServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		HttpSession session = request.getSession(false);
		User user = (User)session.getAttribute("user");
		
		Cookie[] cookies = request.getCookies();
		for (Cookie cookie : cookies) {
			if ("userName".equals(cookie.getName()) || "password".equals(cookie.getName())) {
				cookie.setMaxAge(0);
				response.addCookie(cookie);
			}
		}
		if(user != null){
			Counter.remove(user.getUserName());
			session.invalidate();
		}
		
		
		response.sendRedirect("logon.jsp");
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doGet(request,response);
	}

}
